Improved process op welding- cast or bessemer steel



amt snot aunt (twine LettersPatent No. 99,805, dated February 15, 1870.

IMPROVED PROCESS OF WELDING CAST OR BESSEMER STEEL.

The Schedule referred to in these Letters Patent and making part of thesame To all whom it may concern Be it-known that I, J ons ABSTERDAM, ofthe cit-y,1

full, clear, and exact description thereof, which will enable thoseskilled in the art tom-alto and use the same.

My present iiivcntion is intended to facilitate the operation of unitingone or more plates or bars of -ast or Bessemer steel with one or moreplates of wrought iron. It is also to facilitate the operation ofuniting two or more bars or slabs of old Bessemer-steel rails, or othercast-stcetscra iis, for rerolling it into merchantable bars, sheets, orslabs.- J

The invention consists in placing between the bars or plates of cast orBessemer steel and the. bar or plate of iron which are to be united, a.thin body of steel of cementation, puddled steel, or case-hardened iron,in such a manner that said body of steel of ccmentation,

spuddlcd steel, or case-hardened iron, forms an intermediate weldingmetal vhich acts as a soldering agent in uniting the plates of cast orBessemer steel with each other, or with the plate or plates of iron.

It consists, also, in placing between bars or plates of old Bessemerrails, .or other cast-steel scraps which are to be united, a thin bodyof steel of cementation, puddlcd steel, or case-hardened iron, in such amanner thatsuch body of steel .of cemenlation, puddled steel, orcase-hardened iron also forms an intermediate welding metal in unitingthe whole into one solid mass.

In carrying out my invention I take the plates of cast or Bessemersteelwhich are to be united, and interpose' between them a thin plate ofsteel of ceinentation, or of paddled steel, or of case-hardened iron,then I heattlie whole pile to welding heat, and unite the samev byhammering or rolling.

If it is desired to unite a plate or plates of cast or Bessemer steelwith a plate or bars ot"wrought iron, the process is snbstantiznly thesame, with that exception, that the iron portion of the pile mustbehcated to a white welding heat, the steel'portion being protected againstbeing overheated by a bed of sand or clay, in the usual manner,

instead of simply inter-posing the plate of steel of cementation,puddled steel, or case-hardened iron, loosely between the platestobeunited, it may be previously united to a plate of cast or Bessemersteel, by hammering. or rolling, or by anyother suit-able means, andthen placed upon the plate of cast or Bessemer steel,.or of wroughtiron, and treated as above stated.

This process is applicable to all articles where cast or Bessemer steelis to be united to cast or Bessemer steel or to wrought iron, theinterposed body of steel of cementation, puddled steel, or case-hardenedwrought iron. acting as a. uniting medium, whereby the welding J annary, 1870.

operation, is rendered feasible without destroying the castor Bessemersteel.

In order to prevent the overheating of the cast or Bessemer steel in thewelding operation, I sometimes insert the bar or slab or slabs of castor Bessemer steel between two plates of case-hardened iron, whichprotects the steel from the flame of the furnace, and then weld thewhole into one bar, slab, or sheet, as the case may require.

In the absence of bars or sheets of puddlcdsteel, cemented steel, orcase-hardened iron, I introduce hetween the steel and iron to be weldedfilings or fine trimmings of cemented steel, puddled steel, orcasehardened iron; or I take wrought-iron filings or tine wrought-ironborings, and cement them with some carbonaceous substance in the samemanner as wrought iron is now convert-ed or case-hardened. Said filingswill act as an intermediate welding metal between the cast or Bessemersteel and the wrought iron..=

From these bars, slabs, or sheets of combined caststeeland iron I makerailroad bars with steel heads, by placing in the'rail pile a slab orbar of the combined metal, and piling or fagoting the iron against theiron side of the combined bar in such a manner that, in rolling the railpile, the cast or Bessemer steel forms the head of the rail; and inwelding or rerolling old- Bessemer-steel bars in the manner beforementioned, I roll or hammer the same ,into head-bars or slabs, formaking steel-headed rails or'I roll the whole directly into a solidsteel rail.

1 also use it for wagon-tires, and for horseshoes, and various otherpurposes. And of this combined metal I also use for armor-plates, forbuilding bridges, and

for, buildingvessels. I roll it also into sheets for yarious purposes;and it is also a good metal for constructing car-wheels, and for thewheels of field artillery. 7

What I claim as new, and desire to secure by-Letters httent, is-- o Thewithin-described process of welding cast or Bessemer'st-eel to cast orBessemer steel, either old or new,

or to wrought iron. by placing between the surfaces to be united a thinplate or layer of steel of cementation, paddled steel, or case-hardenedwrought iron, and treating the pile as setforth.

Also, a bar or slab, or sheet, composed of either two or more bars ofcast or Bessemer steel, either old or new, or of a. bar of cast orBessemer steel and a bar-of iron, united by the agency of an interposedplate or layer of steel ofcementation, paddled steel, or casehardenediron, substantially in the manner herein set forth.

This specification signedlby me this 19th day of Witnesses: JOHNAESTEBDAM.

W. HAUFF, E. 1 KAsTEnnUBEn.

